Defaults.Exposed › By TLD › .co
Is .co safe? The state of .co domain security — Colombia
.co is safer than the internet average. Across 2,989,246 graded .co domains, 75.3% score an F — cleaner than the 78.3% global average — better company than most of the web. 4.1% earn a B or better. Most .co domains can still be impersonated in email, but the ending shifts the odds, not your own domain's grade. As of 2026-08-16.
In the .co zone — covering Colombia — 70.3% of 2,462,866 graded domains earn an F, below the 73.8% internet-wide average. DMARC enforcement here stands at 19.3% — above the 11.8% census-wide rate.
Note: .co is used as a proxy for Colombia based on the domain's TLD, not where the company is registered.
How do .co domains score?
Aggregate grade distribution across all graded .co domains — we never publish an individual business's grade. As of 2026-08-16.
| Grade | Domains | Share |
|---|---|---|
| A+ | 421 | 0% |
| A | 14,724 | 0.5% |
| B | 106,240 | 3.6% |
| C | 255,960 | 8.6% |
| D | 359,903 | 12% |
| F | 2,251,998 | 75.3% |
Does .co make a domain secure?
No — and that's the most important thing to know. A domain's grade is decided by how it is configured (SPF, DMARC, HTTPS, DNS), not by its ending. Choosing .co doesn't protect you, and a high-F-share ending doesn't doom you: a correctly configured .co domain earns an A while the crowd around it sits at F.
Want to know where your .co domain ranks? Check it privately and free — we only ever show an individual domain's grade to its verified owner. Run the free check →
Frequently asked questions
Is .co safe?
On average, .co is safer than the internet average: 75.3% of its 2,989,246 graded domains score an F as of 2026-08-16, against a 78.3% global average. Most domains on every ending are exposed — the ending shifts the odds, not your own domain's grade.
How secure are .co domains?
24.7% of .co domains score above an F and 4.1% earn a B or better. The rest fail the basic externally observable protections, most importantly enforced SPF and DMARC, so they can be impersonated in email.
Does choosing .co make my domain secure?
No. A domain's grade comes from how it is configured — SPF, DMARC, HTTPS, DNS — not from its ending. A well-configured domain earns an A on any ending; an unconfigured one sits at F on .co too.
What does "grade F" mean for a .co domain?
It fails the basic protections we can observe from outside — above all, it has no enforced SPF and DMARC, so its email can be forged and its customers targeted with convincing fakes.
By TLD: .ca · .eu · .au · .in · .it · .pl · By TLD
Domain security by country → · Most & least secure TLDs → · Check your domain → · How we grade →